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单项选择题

女,32岁。39+6周妊娠,规律宫缩10小时。阴道检查示:胎膜已破,羊水清,S=-1,宫口开大4cm。4小时后阴道检查宫口无进展。此时应考虑为 A.
潜伏期延长 B.
活跃期延长 C.
活跃期停滞 D.
第二产程延长 E.
滞产

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单项选择题,则. A、3 B、4 C、1 D、0

单项选择题水力计算的内容包括过流能力、上下游水流衔接、水头损失、水力过渡过程、压坡线、水面线、掺气、充水等。 Which translation version is better?

A． The contents of hydraulic calculation include flow capacity, interconnection of up stream and down stream flow, headloss, hydraulic transition process, hydraulic grade line, flow profile, aeration, water filling, etc.
B． The contents of hydraulic calculation include over-flowing capacity, joint up stream and down stream water, headloss, hydraulic transition process, gradient line, water surface line, aeration, water filling, etc.